Auerswald COMpact 3000 analog Operating Manual page 594

Glossary
Terminology and Functions
P
Point-to-Point Connection
This is an ISDN connection with a direct extension options. A provider allocates a PBX base
number with additional extensions (DDI), e.g., 9200–0. PBXs are usually operated on a point-
to-point connection.
Port
A single PC can simultaneously establish multiple connections and provide multiple services
for other PCs. Ports are used to differentiate these connections from parallel connections. Due
to a common agreement, PCs usually provide their services on ports 1 to 1023. Outgoing
connections are usually established starting at Port 1024. Most services that use the standard
port numbers (for example, web browsers use port 80).
POTS
POTS (Plain Old Telephone Service) is the international name for the analogue exchange line.
Priority Call
When the do-not-disturb function is enabled, a subscriber is no longer reachable by normal
callers. A priority call creates an exception and allows the incoming internal call to circumvent
the do-not-disturb function.
Private (Personalized) Exchange Line Access
Private (personalized) exchange line access enables separate billing for business and
personal calls for individual employees. Using private exchange line access, calls initiated are
given a special identification while the call data is being recorded. This allows the charges to
be billed to the employee.
Proxy
A proxy server acts as the interface to the Internet or between two networks. For example, it
receives queries from a computer in an intranet. It then connects to the Internet (on behalf of
the computer) to forward the queries and return the (if necessary, filtered) responses. To
achieve this, the HTTP proxy uses the Internet's HTTP protocol.
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COMpact 3000 analog/ISDN/VoIP - Firmware V4.0 - Operating Manual V06 12/2020